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Something that is so freaking fly and fresh. If someone's singing sounds like Jesus and Fergy mixed together, their voice is Guac. When you want to describe something as the most amazing, on fleek, dope ass, gucci thing ever just use the word instead of trying to explain how flipping legendary the said thing is. In other words Guac is the new "dope" for you older users.
Person one: "Damn! That is the most delicious, gucci, awesome, beautiful, amazing, exhilarating, dope ass, on fleek steak I have ever tasted! It was a legendary slab of heaven! I had an out of body extra terrestrial experience just from eating it! Wow!"
Person 2: "So you mean it was Guac?"
Person 1: "Guac af man. Guac af."
by gabedown March 12, 2015
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Teacher: Write a 1-page paper on WWI.
Student 1: *hands in 7438921432196 pages*
Student 2: Why you gotta be so guac?
by Latoang June 02, 2017
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Another term for weed. This is due to the fact that weed looks a lot like guacamole, especially when you are high.
Dale's Mother: "Where were you last night Dale?"
Dale: "I was puffing mad guac with the crew..."
Dale's Mother: "I have no idea what that means."
by TheRealMC August 10, 2015
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Cool as hell. This person is a super cool dude. If you have guac you have swag and you are very popular and everyone likes you. Guac can only be possessed by some people, to be bad ass and epic.
Dude that guy must have guac! He has all the ladies.
by CHICKEN NUGGET Head March 14, 2018
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(adj.) Derived from Chipotle's extra charge for guacamole. To be "guac" is to be: extra, more than necessary, dramatic, too much, etc.
Camila from Fifth Harmony is so extra.

Girl, like guacamole at Chipotle.... That bitch is guac as fuck.
by Adex August 24, 2016
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Richard: You don't love the Guac?!?!
Nani: Nah, I don't like the way it feels in my mouth
by guacamole lova November 28, 2011
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